InTrailMuros is an Urban Night Trail organized by the Coureurs d'Aventure, a Malouine association of running enthusiasts. In 2017: 1500 participants on the starting line of the first edition. An incredible experience, emotion, great atmosphere, magic ... You have a-do-re! 1500 riders against the clock on an exceptional course of 12km at night in the mythical Cité Corsaire. A third edition that offers you many surprises on the course and in the race village. 10 departure locks of 15 minutes set up from 18:45 and until 21:15